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1311469080 = 233517642877
BaseRepresentation
bin100111000101011…
…0110111000011000
310101101202112100220
41032022312320120
510141214002310
6334045200040
744333206005
oct11612667030
93341675326
101311469080
11613321149
12307260020
1317b92240c
14c62688ac
157a208670
hex4e2b6e18

1311469080 has 64 divisors (see below), whose sum is σ = 4165849440. Its totient is φ = 329152512.

The previous prime is 1311469069. The next prime is 1311469087. The reversal of 1311469080 is 809641131.

It is a super-2 number, since 2×13114690802 = 3439902295592092800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311469087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319399 + ... + 323478.

Almost surely, 21311469080 is an apocalyptic number.

1311469080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311469080 is an abundant number, since it is smaller than the sum of its proper divisors (2854380360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311469080 is a wasteful number, since it uses less digits than its factorization.

1311469080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642908 (or 642904 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1311469080 is about 36214.2110227463. The cubic root of 1311469080 is about 1094.5930474169.

The spelling of 1311469080 in words is "one billion, three hundred eleven million, four hundred sixty-nine thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 17 20 24 30 34 40 51 60 68 85 102 120 136 170 204 255 340 408 510 680 1020 2040 642877 1285754 1928631 2571508 3214385 3857262 5143016 6428770 7714524 9643155 10928909 12857540 15429048 19286310 21857818 25715080 32786727 38572620 43715636 54644545 65573454 77145240 87431272 109289090 131146908 163933635 218578180 262293816 327867270 437156360 655734540 1311469080